1) benzyl protection
苄基保护
1.
In Route two, starting from dopamine, the target compound was obtained via total 9 steps including benzyl protection, amidation, cyclizati.
路线二，以盐酸多巴胺为起始原料经苄基保护、酰化、环合、还原、脱保护等9步反应后得到目标化合物1，总收率48。
2) Benzylated mannopyranosyl carboxylates
苄基保护甘露糖羧酸酯
3) α-phenyl O-nitrobenzyl photolabile Group
α苯基邻硝基苄类光致保护基
4) hydroxyl protection
羟基保护
1.
5,6-Dihydroxyindole was prepared from homoveratronitrile,hydrochloride/pyridine,benzyl chloride,potassium carbonate,nitric acid and cyclohexene by means of demethylation,hydroxyl protection,nitration and reductive ring closure.
本文以3,4-二甲氧基苯乙腈、氯化氢/吡啶、氯化苄、碳酸钾、浓硝酸和环己烯等为主要原料,经去甲基化、羟基保护、硝化及还原环合四步反应合成5,6-二羟基吲哚。
5) amino protection
氨基保护
1.
In this paper,we show some general methods of amino protection and some protective groups,and also give a few examples to indicate their applications in organic synthesis.
综述了常用的氨基保护方法和保护基，并列举了大量实例说明其在有机合成中的应用。
2.
Effects of different amino protection groups on fluorination reaction of α-hydroxyl-γ-amino-phosphonate were investigated.
比较了不同氨基保护基对α-羟基-γ-氨基磷酸酯亲核氟化反应的影响,以Boc,Ts和Bz保护氨基时未得到预期的氟化产物;以Phth,Fmo和CH3OCO-保护氨基时可得到氟化产物,其中Phth保护氨基的效果最好,氟化产物的收率42
6) protecting group
保护基
1.
Using inexpensive,convenient obtained NaBH_4-I_2-THF system,N-Cbz or Boc protected prolines were reduced into corresponding prolinols in mild condition with high chemical selectivity and good to high yields,and the protecting groups were not influenced.
采用价廉易得的NaBH_4-I_2-THF体系还原N-Cbz或Boc保护的脯氨酸,可以得到相应的脯氨醇,反应条件温和,产率高,化学选择性好,保护基不受影响。
2.
A series of novel α-methylated sulfoximine derivatives were synthesized from sulfoximine A by α-methyl alkylation using p-methoxylbenzyl as a N-protecting group.
从Sulfoximine A出发,选取对甲氧基苄基(PMB)为N-保护基,通过α-甲基的烷基化反应合成了一系列新的Sulfoximine类衍生物,其结构经1HNMR确证。
补充资料：苄基
分子式：
CAS号：
性质：又称苯甲基。甲苯分子中的甲基碳上去掉一个氢原子后，剩下的一价基团。结构式为：通常也可写成：C6H5CH2—，PhCH2—，PhCH2—或用Bz—表示。
CAS号：
性质：又称苯甲基。甲苯分子中的甲基碳上去掉一个氢原子后，剩下的一价基团。结构式为：通常也可写成：C6H5CH2—，PhCH2—，PhCH2—或用Bz—表示。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条